| 沙漠人工植被和流动沙丘的小气候特征观测研究 |
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| 引用本文： | 刘树华,陈荷生.沙漠人工植被和流动沙丘的小气候特征观测研究[J].干旱区地理,1994,17(1):16-23. |
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| 作者姓名： | 刘树华 陈荷生 |
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| 作者单位： | 北京大学地球物理系!北京100871(刘树华，辛国君)，中国科学院兰州沙漠研究所!兰州730000(陈荷生，冯金朝，刘元波，刘立超) |
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| 基金项目： | 中科院沙坡头沙漠研究开放站基金，北京大学预研基金 |
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| 摘 要： | 本文利用１９９２年８月在中国科学院沙坡头治沙试验研究站沙漠人工植被防护体系和流动沙丘下垫面近地面层的微气象观测资料，分析了其小气候特征，效应的物理机制及实际和理论意义。
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| 关 键 词： | 人工植被 流动沙丘 小气候 沙漠 |
STUDY ON MICROCLIMATE OF THE ARTIFICIAL VEGETATION OVER SAND DUNDS IN SHAPOTOU AREA |
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| Liu Shuhua, Xin Guojun.STUDY ON MICROCLIMATE OF THE ARTIFICIAL VEGETATION OVER SAND DUNDS IN SHAPOTOU AREA[J].Arid Land Geography,1994,17(1):16-23. |
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| Authors: | Liu Shuhua Xin Guojun |
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| Abstract: | The microclimatic charactex and effects of the artificial vegetation over sand dunes in Shapotou area were analyzed. The results may be summarized as follows: 1. The air temperature, vapour pressure and temperature of surface soil in the area where the sand dunes covered by the artificial vegetation are higher during daytime and lower during night than that on bare sand dune surface. 2. The wind velocities decrease for 55%, 32%,24% and 19% at 0.5, 1. 0, 1. 5 and 2. 0 meters respectively over the artificial vegetation. 3. The soil heat flux of sand dune surface covered by artificial vegetation is lower than that of bare sand bune surface. Net radiation heat flux,sensible heat flux and latent heat flux are higher over sand dune surface covered by artificial vegetation than that of bare sand dund surface.In this paper, the physical mechanism, practical and theoretical significances of sand dune surface covered by artificial vegetation are discussed. |
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| Keywords: | artificial vegetation sand dune microclimate |
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